A comprehensive spatial and temporal vehicular emissions for northeast China
A comprehensive spatial and temporal vehicular emissions for northeast China
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东北地区机动车排放综合时空变化
DOI：
10.1016/j.atmosenv.2020.117952
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发表时间：
2021-01-01
影响因子：
5
通讯作者：
Chen, Weiwei
中科院分区：
文献类型：
--
作者：
Ibarra-Espinosa, Sergio;Zhang, Xuelei;Chen, Weiwei
随着经济的发展，东北地区的汽车保有量沿着急剧增加。然而，关于运输部门排放量的信息仍然有限。本研究建立了一个全面、详细、高分辨率的东北地区机动车排放清单。我们将中国排放指南的方法应用到开源模型VEIN中，以获得由温度、湿度、海拔、速度、燃料质量和活动调整的排放因子。此外，我们将排放因子与欧洲排放指南的数据分开，以获得特定的污染物化合物。我们的估计经过校准，以匹配国家统计年鉴（NSY）和国际能源署（IEA）的燃料消耗数据。CO、HC、NOX、PM2.5、BC、CO2的排放量分别为1，420，212 [吨·年（-1）]、123，861 [吨·年（-1）]、518，181 [吨·年（-1）]、17，118 [吨·年（-1）]、10，645 [吨·年（-1）]和108，249，047 [吨·年（-1）]。客车汽车排放约80%的CO和HC，而卡车排放72%的NOX和PM2.5。该清单以0.1的分辨率网格化，显示排放高度集中在城市中心。与NSY数据的结果产生了更好的协议与其他研究。排放最多的城市是沈阳，其次是哈尔滨，长春和大连。一氧化碳、碳氢化合物、异戊烷和甲苯的排放峰值出现在车辆使用11年时，而BC、CH 4、PM2.5和NOX的排放峰值出现在车辆使用6年时。据我们所知，这是运输业首份涵盖133种污染物的排放清单。
Northeast China has experienced a dramatic increase in vehicle population, along with economic development. However, information about the emissions from the transport sector is still limited. A comprehensive, detailed, and high-resolution vehicular emissions inventory for Northeast China was developed in this study. We imple-mented the methodology of the Chinese emissions guidelines into the open-source model VEIN to obtain emission factors adjusted by temperature, humidity, altitude, speed, fuel quality, and activity. Furthermore, we split the emission factors to obtain specific pollutant compounds with data from the European emissions guidelines. Our estimates were calibrated to match fuel consumption data from the National Statistical Yearbook (NSY) and International Energy Agency (IEA). The emissions for CO, HC, NOX, PM2.5, BC, CO2 were 1,420,212 [t.y(-1)], 123,861 [t.y(-1)], 518,181 [t.y(-1)], 17,118 [t.y(-1)], 10,645 [t.y(-1)] and 108,249,047 [t.y(-1)], respectively. The passenger cars emit approximately 80% of CO and HC, while trucks the 72% of NOX and PM2.5. The inventory was gridded with a resolution of 0.1-revealing that emissions are highly concentrated in urban centers. The results with NSY data produce a better agreement with other studies. The city with the most emissions is Shenyang, followed by Harbin, Changchun, and Dalian. The peak emissions of CO, HC, isopentane and toluene occurs at 11 years of vehicle use, while the peak for BC, CH4, PM2.5, and NOX occurs at six years of vehicle use. To the best of our knowledge, this is the first emissions inventory from the transport sector covering 133 pollutants.